Used to prevent welding debris and tooling from falling below, during re-roofing projects etc. Medium duty (17 oz.) and heavy duty (32 oz.), effectively contains sparks and light spatter. The 17 oz. Tarps prevents light tools, while 32 oz. prevents most tools, and construction debris typically used in re-roofing projects from falling below roof line. Complete with hi-temp hanging loops.Also, available, catchment tarps for leaks manufactured of F/R material, for applications where high temperature fabric is not necessary.Ask us about our VersaTarp line of catchment tarps which funnel leaks away through a built in hose attachment. Many sizes in stock.